diff options
Diffstat (limited to 'lib/sh/setlinebuf.c')
-rw-r--r-- | lib/sh/setlinebuf.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/lib/sh/setlinebuf.c b/lib/sh/setlinebuf.c new file mode 100644 index 0000000..6473ddf --- /dev/null +++ b/lib/sh/setlinebuf.c @@ -0,0 +1,63 @@ +/* setlinebuf.c - line-buffer a stdio stream. */ + +/* Copyright (C) 1997 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + Bash is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <stdio.h> + +#include <xmalloc.h> + +#if defined (USING_BASH_MALLOC) +# define LBUF_BUFSIZE 1008 +#else +# define LBUF_BUFSIZE BUFSIZ +#endif + +/* Cause STREAM to buffer lines as opposed to characters or blocks. */ +int +sh_setlinebuf (stream) + FILE *stream; +{ + char *local_linebuf; + +#if !defined (HAVE_SETLINEBUF) && !defined (HAVE_SETVBUF) + return (0); +#endif + +#if defined (USING_BASH_MALLOC) + local_linebuf = (char *)xmalloc (LBUF_BUFSIZE); +#else + local_linebuf = (char *)NULL; +#endif + +#if defined (HAVE_SETVBUF) + +# if defined (SETVBUF_REVERSED) + return (setvbuf (stream, _IOLBF, local_linebuf, LBUF_BUFSIZE)); +# else /* !SETVBUF_REVERSED */ + return (setvbuf (stream, local_linebuf, _IOLBF, LBUF_BUFSIZE)); +# endif /* !SETVBUF_REVERSED */ +# else /* !HAVE_SETVBUF */ + + setlinebuf (stream); + return (0); + +#endif /* !HAVE_SETVBUF */ +} |